EP 0329153 B1 19921021 - NOVEL LACTIC ACID DERIVATIVES AND LIQUID CRYSTAL COMPOSITIONS CONTAINING THE SAME
Title (en)
NOVEL LACTIC ACID DERIVATIVES AND LIQUID CRYSTAL COMPOSITIONS CONTAINING THE SAME
Publication
Application
Priority
- JP 3392288 A 19880218
- JP 8132888 A 19880404
Abstract (en)
[origin: EP0329153A2] A compound represented by formula (I): <CHEM> wherein R1 represents an alkyl group having from 1 to 18 carbon atoms; R2 represents an alkyl group having from 2 to 16 carbon atoms; rings A, B, C, and D each represents a 1,4-phenylene group or a 1,4-phenylene group having one or two halogen atoms; Y represents a single bond, - @-O-, or -O- @-; m and n each represents 0 or 1; p represents 0, 1, or 2; q represents 0 or an integer of from 1 to 6; and C* and C** each represents an asymmetric carbon atom in an (S)- or (R)-configuration, and a liquid crystal composition containing the compound of formula (I). The compound of formula (I) is a chiral liquid crystal compound exhibiting large spontaneous polarization, a long helical pitch, an SC* phase in a broad temperature range including room temperature, satisfactory orientation, and a high rate of response.
IPC 1-7
IPC 8 full level
C07C 69/773 (2006.01); C09K 19/12 (2006.01); C09K 19/20 (2006.01)
CPC (source: EP US)
C09K 19/126 (2013.01 - EP US); C09K 19/2021 (2013.01 - EP US)
Citation (examination)
EP 0191600 A2 19860820 - AJINOMOTO KK [JP]
Designated contracting state (EPC)
CH DE GB LI
DOCDB simple family (publication)
EP 0329153 A2 19890823; EP 0329153 A3 19900502; EP 0329153 B1 19921021; DE 68903229 D1 19921126; DE 68903229 T2 19930408; US 5324451 A 19940628
DOCDB simple family (application)
EP 89102756 A 19890217; DE 68903229 T 19890217; US 87074392 A 19920420